Wt  3.3.9
Classes | Enumerations
Ext widgets (Wt::Ext, deprecated)

Wt Ext library with JavaScript-only widgets (deprecated). More...

Classes

class  Wt::Ext::AbstractButton
 Abstract base class for a (toolbar) button or menu item. More...
 
class  Wt::Ext::AbstractToggleButton
 Abstract base class for radio button and check box. More...
 
class  Wt::Ext::Button
 A button. More...
 
class  Wt::Ext::Calendar
 A calendar. More...
 
class  Wt::Ext::CheckBox
 A user control that represents a check box. More...
 
class  Wt::Ext::ComboBox
 A widget that provides a drop-down combo-box control. More...
 
class  Wt::Ext::Component
 An abstract base class for widgets that can be visually disabled. More...
 
class  Wt::Ext::DataStore
 A resource that serializes data from a data model. More...
 
class  Wt::Ext::DateField
 A form field for conveniently editing a date using a calendar popup. More...
 
class  Wt::Ext::Dialog
 A dialog emulates a modal window that blocks the user-interface. More...
 
class  Wt::Ext::FormField
 An abstract base class for form fields. More...
 
class  Wt::Ext::LineEdit
 A line edit. More...
 
class  Wt::Ext::Menu
 A menu presented in a popup window. More...
 
class  Wt::Ext::MenuItem
 An item in a menu. More...
 
class  Wt::Ext::MessageBox
 A standard dialog for confirmation or to get simple user input. More...
 
class  Wt::Ext::NumberField
 A form field for editing a number. More...
 
class  Wt::Ext::PagingToolBar
 A tool bar that provides paging controls for supporting large data sets in a table view. More...
 
class  Wt::Ext::Panel
 A container with a title and standard GUI elements. More...
 
class  Wt::Ext::ProgressDialog
 A standard dialog to inform the user of progress during a time consuming task. More...
 
class  Wt::Ext::RadioButton
 A user control that represents a radio button. More...
 
class  Wt::Ext::Splitter
 A container widget with resize handles between its children. More...
 
class  Wt::Ext::SplitterHandle
 A handle inside a splitter. More...
 
class  Wt::Ext::TableView
 A widget that displays data in a table. More...
 
class  Wt::Ext::TabWidget
 A widget that organizes contents in tab panes. More...
 
class  Wt::Ext::TextEdit
 A rich-text editor. More...
 
class  Wt::Ext::ToolBar
 A class that represents a tool bar (or a menu bar). More...
 
class  Wt::Ext::ToolTipConfig
 A configuration object for tool tips. More...
 
class  Wt::Ext::Widget
 An abstract base class for all Ext widgets. More...
 

Enumerations

Detailed Description

Wt Ext library with JavaScript-only widgets (deprecated).

1. Introduction

An add-on library to Wt (wtext) provides additional widgets that are all contained within the Wt::Ext namespace. These widgets are implemented using an open-source third-party JavaScript library, extjs (http://extjs.com/), version 2.0, or 2.1 but not higher (does not support Ext 2.2), e.g. http://extjs.com/deploy/ext-2.0.2.zip.

Unlike plain Wt widgets, these widgets require the availability of JavaScript (and a sufficiently recent browser). They do, however, have a polished default look (certainly compared to unstyled plain Wt widgets), and add several new capabilities to Wt:

The functionality of some of these widgets overlaps with existing Wt widgets. Whenever possible, the same API was adopted.

The following table shows corresponding widgets and comments on the resemblance of the APIs.

Wt widgetWt Ext widget Comment
WCalendarCalendar The Wt version is more versatile (for example allows multiple selection, and allows more programmatic control.
WCheckBoxCheckBox Identical API.
WComboBoxComboBox The Ext version adds a number of features that are similar to those provided by Wt's SuggestionPopup, and allows keeping the entire data set at the server.
WDialogDialog Almost identical API. The Ext version manages standard buttons.
WLineEditLineEdit Identical API.
WMessageBoxMessageBox Almost identical API. The Wt version is more flexible with respect to buttons, while the Ext version supports prompting for input.
WRadioButtonRadioButton Identical API.
WTextEditTextEdit API differences. The Wt version has more options and is XHTML-compliant.

You can freely mix Wt widgets and Ext widgets in your application: Wt widgets containers may contain Ext widgets, and vice-versa. From a programmer perspective, there are no differences for using Wt versus Ext widgets.

2. Deployment notes.

To use Ext widgets, you need to download the Ext JavaScript library (ext-2.x), and deploy the following files to your web server:

The default value for extBaseURL is "ext/". This value may be overridden with a URL that points to a folder where these files are located, by configuring the extBaseURL property in your Wt configuration file.

Deprecated:
Use native widgets instead.

Enumeration Type Documentation

An enum for the location of data in data-intensive widgets.

See also
ComboBox::setDataLocation(), TableView::setDataLocation()
Enumerator
ClientSide 

Download the whole data model to the client.

ServerSide 

Keep the data at the server, and transfer data on-demand.


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